Carbonating apparatus



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l A. M. HORN ET AL CARBONATING APPARATUS April 6 1926.

A. M. HORN ET AL,

CARBONATING APPARATUS Filed Deo. 8, 1925 Sheets-Sheet 3 5M/umm 717. frrow I Patented Apr. 6, 1926.

UNITED STATES PATENT OFFICE.

ARTHUR M. HORN AIND WILLIAM T. FARROW, OF EL PASO, TEXAS, ASSIGNORS TO FARROW FOUNTAIN COMPANY, OF EL PASO, TEXAS, A CORPORATION OF DELA- WARE.

ACAREBONATING APPARATUS.

Application led December 8, 1925. Serial No. 74,149.

To all whom t may concern:

Be it known that We, ARTHUR M. HORN and WILLIAM T. F ARROW, citizens of the f United States, residing at El Paso, county of El Paso, and State of Texas, have invented certain new and useful Improvements in Carbonating Apparatus, of which the following is a specification.

This invention relates to a carbonating apparatus, frequently called a carbonator. This application is a continuation in part of 'our application, Serial No. 44,216, filed July 17, 1925. y

Among the objects of this invention are to provide a device o-f this character of novel and improved construction wherein provision is made for producing large quantities of carbonated water and delivering the same through faucets or nozzles for use in making carbonated beverages; to constructing an improved carbonator` free from moving parts; to provide novel control mechanism for such a carbonator, and to provide improved means for super-carbonating the liquid passing through the carbonator.

Another objectief this invention is to produce a carbonator in which the pressure of the carbon dioxide gas is employed for the purpose of discharging carbonated water from the apparatus, and in which carbon dioxide gas, at a lesser pressure is employed for carbonating the water at the discharge so that the carbonating apparatus functions solely on a differential pressure and is entirely free from moving mechanical parts.

Another object of this invention is to produce a ca rbonating apparatus in which the vas is more thoroughly mixed with the water 1n an extremely, finely subdivided form so that the carbonated water will maintain its charge for a relatively long period of time.

Another object of this invention is to produce a carbonating apparatus of extremely simple construction, which is entirely free from moving parts and which will produce an extremely fine carbonated water at a relatively low cost while employing Va low' gas 'pressure within the apparatus.

In the following detailed descri tion we shall refer to the accompanying rawings in which:

Figure 1 is a central vertical sectional view of a carbonating apparatus embodying our invention;

Figure 2 is a top plan view thereof with the cover of the casing removed;

Figure 3 is a vertical section on the line 3 3 of Figure 2;

Figure 4 is a fragmentary transverse section on the line 4-4 of Figure 3; and

Figure 5 is a perspective view. showing thekpiping arrangement removed from the tan The carbonator tank consists of a cylindrical closed metal 10 which is preferably mounted in a box or casing 11 adapted to be filled with a cooling medlum, such as ice, brine or the like, in orderto cool the con. tents thereof and for a further purpose that will hereinafter appear. A pipe 12 encircles the tank, at an intermediate point, one end terminating in a Y connection 13 and the other en;d extending outwardly at 14 through the wall of the caslng and is provided with a draw-off faucet 15. To the upper branch of the Y is connected a pipe 16, which extends upwardly along the side of the tank,

passing inwardly over the top and extending downwardly through the tank as indicated at 17, terminating adjacent the bottom thereof.

The lower branch of the Y is connected by a pipe 18 with a carbon dioxide supply pipe 19, the upper end of the pipe 18 being plugged by a suitable bushing, from which extends a small carbonating pipe 20, posltioned. centrally within the pipe 12. The small inner pipe 2O is provided throughout its length with a multiplicity of perforations for the escape of carbonio acid gas lnto the water flowing through the pipe 12. These perforations in the inner pipe 20 are preferably so formed that the carbon dioxide gas is emitted into the pipe 12 in a very fine state of subdivision and may be formed either as fine longitudinally extending slits or they may be punched in the pipe with a small punch. A pipe 21 extends laterally from the pipe 19 through the bottom walls of the casing and the tank and terminates in a small carbonating pipe 23. A pressure reducing valve 22 is inserted in the pipe 19 between the branch 21 and thev pipe 18. Although both carbon dioxide pipes 18 and 20 are herein illustrated as connected to a common carbon dioxide supply it is to be understood that this is not an essential feature of my invention but that the pipes 18 and 20 may be connected to any suitable source of gas pressure. It is preferable, that the carbon dioxide gas pressure within the pipes 18 and 20 be less than .the gas pressure supplied through the pipe 21 to the interior of the tank 10. The gas pressure Within the interior of the tank 10 will act on the surface of the water therein to force the same upward through the pipe 17 when the draw-0E faucet 15 is opened. Water is supplied to the tank through-the pipe 24x, which is provided with a Valve 25. The tank is provided with the usual pet-cock 26 and safety valve 27.

The water sup ly pipe 24 leads from any suitable service o water supply and is coiled around the tank 10 as illustrated at 24 so that the inlet water to the tank 10 is cooled. This cooling of the inlet water prior to the charging thereof with carbon dioxide greatly increases the eiiiciency of the chargmg. A draw-od pipe 29 is connected at a T 30, so as to furnish a supply of ice water through a faucet 31 as usual.

The operation of the carbonator will be understood' from the above detailed description of the structural parts. The water in the tank 10 is carbonated to a certain extent by the carbon dioxide gas as it bubbles up from the perforated pipe 23. A portion of this gas accumulates in the upper part of the tank and produces the pressure-necessary to eject the water through the pipe 17. The still water in the tank willnot readily absorb the gas and We have therefore devised a super-charger device to subject the water to the action of a finely divided spray of gas while it is confined to the narrow channel of the draw-oil' pipe. ,This Water has been thoroughly chilled and is caused to move rapidly through the pipe each time the charged water 1s drawn from the faucet. We have found that we are thus enabled to very greatly increase the amount of gas absorbed y the water and to obtain results which have ,not heretofore been obtained. As this charged water passes through the lsu ercharger pi e 12 which encircles the tan it is .again subjected to the action of the carbon dioxide gas emitted from the multiplicity of minute apertures in the inner tube 20. Hence by the time the water reaches the faucet 15 it is in a highly charged condition.

It will be evident to those skilled in the manufactureA of carbonating apparatus that numerous changes maybe made in the structural features and the arrangement of parts without in any manner departing from the scope of our invention.

Having thus described the invention, what is claimed as new, is:

1. The combination with a carbonating tank; of a draw-off pipe leading therefrom, means to supply the tank with gas under pressure, and a gas distributive means lo-l 'provided wit cated in the draw-olf pipe for introducing the gas into the outflowing liquid at a plurality of points.

y 2. The combination with a carbonating tank; of a draw-off pipe leading therefrom, means to supply the tank with gas under pressure, and means to supply gas to the draw-olf pipe at a plurality of points at a less pressure than that at which the gas is supplied to the tank.

3. The combination with a carbonating tank having a draw-oli' pipe leading therefrom; a carbon dioxide supply pipe having branches leading respectively to said tank and to said draw-olf pipe, means in said pipe to distribute the gas to the outowing liquid at a plurality of points, and a pressure re ducing valve interposed between sai branc es.

4. In a device of the class described, the combination of a tank, means for filling the tank with water, means for cooling the waterprior to the introduction of the same into the tank, a draw-oil pipe, means for introducing carbon dioxide gas into the tank, and means for ysprayingcarbon dioxide gas at a plurality of points into the outfiowing liquid in the draw-od' pipe.

5. The comblnation With a carbonating tank having a draw-cti pipe leading. therefrom; a carbon dioxide supply pipe having branches leading respectively to said tank and to said draw-oil' pipe, and a pressure reducing valve interposed between said branches, a terminal extension on the branch leading to the draw-olf pipe and extending longitudinally therein and provided with a multiplicity of longitudinally spaced perforations.

6. The combination with a carbonating tank having a draw-oil' pipe leading therefrom; a carbon dioxide supply pipe having a branch leading to said tank and a branch leading to said draw-off pipe, anda pressurereducing valve interposed between said branches, a terminal extension on the branch leading to the draw-ofi' pipe and extending longitudinall within the draw-off pipe andl h a multiplicity of longitudinally spaced perforations.

7. In a device of the class described, the combination of a tank, means for filling the tank with Water, means for spraying carbon dioxide gas into the water within the tank, and a draw-off pi e, and means for spraying carbon diox e gas into the draw-off pipe at a plurality of points and under a less pressure than that employed for spraying the carbon dioxide gas into the said tank.

In testimony whereof, we ailix our signatures. Y

ARTHUR M. HQRN.. WILLIAMv T. FARROW. 

